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Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42
Many of the most damaging and life-threatening types of weather - torrential rains, severe thunderstorms, and tornadoes - begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, stuck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short - lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather -balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation - intensive approach needed for accurate, very short - range forecasts, or "Nowcasts," was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.
A. To indicate that tornadoes are common in the summer
B. To give an example of a damaging storm
C. To explain different types of weather
D. To show that tornadoes occur frequently in Canada
Many of the most damaging and life-threatening types of weather - torrential rains, severe thunderstorms, and tornadoes - begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, stuck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short - lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather -balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation - intensive approach needed for accurate, very short - range forecasts, or "Nowcasts," was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.
(Adapted from Reading TOEFL 2)
Why does the author mention the tornado in Edmonton, Canada?A. To indicate that tornadoes are common in the summer
B. To give an example of a damaging storm
C. To explain different types of weather
D. To show that tornadoes occur frequently in Canada
Tại sao tác giả lại đề cập đến cơn lốc xoáy ở Edmonton, Canada?
A. Để chỉ ra rằng lốc xoáy là phổ biến trong mùa hè
B. Để đưa ra một ví dụ về một cơn bão gây thiệt hại
C. Để giải thích các loại thời tiết khác nhau
D. Để chỉ ra rằng lốc xoáy xảy ra thường xuyên ở Canada
One such event, a tornado, stuck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm.
Một sự kiện như vậy, một cơn lốc xoáy, đã đánh vào khu vực phía đông bắc của thành phố Edmonton, tỉnh Alberta vào tháng 7 năm 1987. Tổng thiệt hại từ cơn lốc xoáy vượt quá 250 triệu đô la, mức cao nhất từ trước đến nay trong các cơn bão ở Canada => Như vậy tác giả đưa ra một ví dụ về một cơn bão gây thiệt hại
A. Để chỉ ra rằng lốc xoáy là phổ biến trong mùa hè
B. Để đưa ra một ví dụ về một cơn bão gây thiệt hại
C. Để giải thích các loại thời tiết khác nhau
D. Để chỉ ra rằng lốc xoáy xảy ra thường xuyên ở Canada
One such event, a tornado, stuck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm.
Một sự kiện như vậy, một cơn lốc xoáy, đã đánh vào khu vực phía đông bắc của thành phố Edmonton, tỉnh Alberta vào tháng 7 năm 1987. Tổng thiệt hại từ cơn lốc xoáy vượt quá 250 triệu đô la, mức cao nhất từ trước đến nay trong các cơn bão ở Canada => Như vậy tác giả đưa ra một ví dụ về một cơn bão gây thiệt hại
Đáp án B.